Driving and reversing mechanism.



D. L. DODGE & T. F. ARMSTRONG.

DRIVING AND REVERSING MECHANISM.

APPLICATION FILED 0:0.11, 1914.

1,167,984. Patented Ja11.11,l916.

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COLUMBIA PLANDURAPH c0 WASHINGTON, D. C

UNTTED STATES PATENT ()FFIQE,

DANIEL L. DODGE, F INW'OOD, AND THOMAS F. ARMSTRONG, 0F FAR ROGKAWAY, NEW YORK.

DRIVING AND REVERSING- MECHANISM.

Specification of Letters Patent. Patented Jan. 11, 1916.

Applicationfiled December 11, 1914. Serial No. 876,655.

To all whom it may concern:

Be it known that we, DANIEL L. Donon ment in Drivin andReversin Mechanism b b 7 of which the following is afull, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

The invention relates to driving and reversing mechanism which comprises shiftable parts and means to'enable them easily to be shifted, the main object of the invention being to produce an especially desirable connection for the driving-shaft and propeller-shaft of a motor-boat.

The invention consists of the driving and reversing mechanism Which is hereinafter described and specified in the claims.

On the accompanying two sheets of drawings, on which like reference-numerals designate like parts of different views, Figure l is a broken side-elevation of thismechanism; Fig. 2, a sectional plan thereof; and Fig. 3, a'plan of some partsv and diagrammatic representation of others, illustrating the reversing operation.

Themechanism is shown mounted on the base 1 and the five posts 2, 3, 4, 5 and 6 formed thereon, the driving shaft 7 being supported by the post 2, and the driven shaft 8 by the posts 3 and 4. But this base and the posts 2, 3 and 4 will not be required in a boatin which the motor-shaft and propeller-shaft, represented by shafts 7 and 8, are supported by other means.

Theaxes of the shafts 7 and 8 are on a straight line, the rear end of the former or motor-shaft being near the front end of the other or propeller-shaft. which is a bevel-wheel, preferably of metal, comprises the hub 10 and working surface 11 and is affixed to the shaft 7 by means of the key 12 and screw 13, the hub being close to the post 2. The central portion of this wheel forms a clutch-member in which is the conicofrustum-shaped cavity 14. The wheel 15'is also a bevel-wheel, preferably also of metal. It has the working surface 16, and is affixed to the shaft 8' close to the post 3 by the key 17 and screw 18. The

The wheel 9,

sleeve 19, disk 20, and ring 21, which are fast together, form a conicofrus tum-shaped clutch-member which is shiftablefrom and into engagement with the clutch-member that is part of the wheel 9. Thering 21 is fastened to the disk by screws 22 and is preferably made of wood. The disk and ring are fast on the sleeve which is loose on the shaft 8 but prevented from turning inde- I pendently by the feather 23. The collars 24 and 25 are fast on the sleeve 19 and the shiftable clutch-member is normally kept engaged with the other by the pressure of the coil-spring 26 surrounding the shaft 8 and bearing at one end against the collar 25 and at the other againstthe post 4, so that if the driving shaft then turns the clutch and shaft 8 will turn with it as though they were all a single shaft.

The transverse wheel 27, which is prefer- I ably made of wood,:has the working bevel surface 28 and is mounted on the stud 29 which fits tightly in the post 5 and is fastened thereto by suitable means, such as the pin 30. This stud extends loosely through the sleeve 31, which passes through and is tight in the wheel and on which are the collars 32 and 33 and the disk 34, these being fast on the sleeve, and the wheel is attached to the disk 34 by the bolts 35. This wheel is shiftable axially from the position in which it is shown in Fig. 2 so that its working sur face 28 will make firm contact with the working surfaces 11 and 16 of the two other bevel-wheels. The surfaces 11, 16 and 28, as well as the coacting surfaces of the clutch, are preferably friction-surfaces.

The mechanism for shifting the wheel 27, I

and the clutch-member which is mounted on the shaft 8, comprises the two angular shifting-levers 36 and 37, and the upright lever which is to be described and which is movable by hand to actuate the two other levers. These angular levers are mounted on the post 6 and on the screw-studs 38 and 39 which extend through the levers and into the post. The lever 36 comprises the flat slotted arm 40, andthe branches 41 which form its other arm and on which are rollers 42 which fit loosely between the collars 24 and .25, on opposite sides of the sleeve 19, and the lever 37 comprises the flat slotted arm 43 and the branches 44 which form its other arm and on which are rollers 45 which fit loosely between the collars 32 and 33, on opposite sides of the sleeve'31. The arms 4-Oand 43 are close'together, one being above the other, and the upright lever' 46, next to its lower end whereit is round, extends through them, fitting loosely'in the slots ,4? and 48 in the armsfl lO and 431espe'ctivel-yfl -The upright lever is mounted on the screw-stud e9 projectingfrom the rm 5O fastened to the post lby the screws 51,-but obviously this lever might be 'other--' wise supported. 7

When the clutch-members are engaged, as they are shown in Fig. 2, the wheel 2 1s kept out of contact with the wheels 9 and lo by force exerted by the spring 26 on the sleeve 31 through the levers of the shifting-mechanism. If the lever s6 is moved by hand so that it travels in the slots i and 48 toward their inner ends, the shiftable clutch-member will be drawn from the wheel 9 and simultaneously th transverse wheel will be drawn toward th other wheels, and should the hand he removed from the lever -46, immediately thereafter the parts will be restored by the spring 26 to the positions in which they are shown in Fig. 2. it is plain, therefore, that by moving the lever d6 to the proper position and then holding it there the shiftable clutch-n'iei'nber may be disconnected from the wheel 9 and this wheel be caused to act on the shaft 8 through the transverse wheel '27 and the wheel 15, as indicated by Fig. 3, so as to reverse the action qof the driving shaft on the driven shaft,

and that when the lever 46 is released the driving shaft will instantly become operative to turnthe driven shaft in the directioh of its own motion. The lever 46 may also be moved and held so that no motion will he inriartedto the driven shaft, fronr the-driving shaft. It will be understood that the principle of-the invention does not depend on all of fthe described details of construction of the mechanism shown, and will not be affectedby various changes which may be made therein.

-lav1ng thus described our lnvention, what we claim as new and desire to secure by Letters Patent, is:

1. In driving and reversing mechanism the combination of a driving sha 't, a driven shaft the axis of which is a prolongation of that of the driving shaft and one end of which faces and vis adjacent to an end of thedrivmg shaft, a driving bevel-wheel fast on one shaft, a driven bevel-wheel fast on the other shaft,a transverse axially shiftable bevel-wheel, a shiftable clutch-member mounted on one shaft ad acent to the wheel which is on the other shaft and which in- ;cludes a coacting clutch-member, the shiftable clutch-member being movable axially to and, from said coacting clutch-member,

and shifting mechanism connected both to said shiftable clutch-member and to the transverse bevel wheel and operative to shift them simultaneously as described.

2. In driving and reversing mechanism the combination of a driving shaft, a driven shaft the axis of w iich is a prolongation of that of the driving shaft and oneend of i which -f aces and-is adjacent to an end of the driving shaft, a driving bevel-wheel and clutch-member fasten the driving shaft, a driven bevel-wheel fast on the driven shaft,

.a transverse axially shiftable bevel-wheel, a

ally movable bevel-wheel, a shiftableclutchmember adjacent to the wheel which inthe combination of a driving bevel-wheel, a j; v driven bevel-wheel, a clutch-member lncluded in one of said wheels, a transverse axieludes the aforesaid clutch-member, shifting mechanism connected both to said shiftable clutch-member and to the transverse bevel -wheel and operative to shift them simultaneously, and asprmg that normally presses the clutch-members together and acts through the shifting mechanism on the transverse bevel-wheel to keep it disengaged from the other wheels.

4. In driving and reversing mechanism the combination of a driving bevel-wheel and clutch-member,' a driven bevel -wheel,a Tl

transverse axi ally mo able; bevel-wheel. a shiftable clutch-member, -sh1fting mocha-f;-

nism connected'both to said shiftable clutchmember and to the transverse bevel-wheelj and operative to shift them simultaneously, and a spring that normally presses the clutch-members together and acts through the shifting mechanism on the transverse bevel-wheel to keep it disengaged from the other wheels.

5. In driving and reversing mechanism the combination of a driving bevel-wheel and clutch-member, a driven bevel-wheel,

transverse axially movable bevel-wheel, a shiftable clutch-member, and shifting-mechanism comprising a lever connected to the shiftable clutch-member, another lever connected to the t ansverse bevel-wheel, and a1 third lever movable by hand and operative on both of the others simultaneously.

6. In driving and reversing mechanism: the combination of a driving bevel-wheel and clutch-member, a driven bevel-wheel, a transverse axially movable bevel-wheel, a shiftable clutch-member, and shifting-mechan sm comprising a lever connected to the:

shiftable clutch-member and having a slotlee te ,arm, another lever connected to the transverse bevel wheel and having a slotted engaged with the slotted arms of the other levers: I Y I 7.1a driving and reversing mechanism the combination with two levers having parallel pivotal axes and connected with shiftable parts of the-mechanism and each having a slotted arm', of a third lever movable hand and engaged with theslotted arms of the other levers, its pivotal axis being in a plane that cuts the pivotal axes of the other levers at right angles.

8. In driving and reversing mechanism the combination with two levers having parallel pivotal axes and connected with shift- Copies of this patent may be obtained for able parts of the mechanism of a third lever movable byhand and operative on both of the others simultaneously, its pivotal axis being in a plane'that cuts the pivotal axes of the other levers at right angles.

9. In driving and reversing mechanism the combinationwith two levers having -ver-=.

tical pivotal axes and connected with shift able parts of the mechanism, of a third lever having ahorizontal pivotal axis andmovable by hand; and operative on both of the others simultaneously; g

- DANIEL L. DODGE.

THOMAS RARMSTRONG.

In presence of- WM. D. CHADE,

SAMUEL D; ADAMS.

five cents each, by addressing the Commissioner of Patents, Washington, D. G. I 

